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CBSE Questions for Class 5 Maths Be My Multiple I Will Be Your Factor Quiz 3 - MCQExams.com
CBSE
Class 5 Maths
Be My Multiple I Will Be Your Factor
Quiz 3
Find a number which has a multiple of all the numbers from 1 to 10?
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$$5040$$
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$$1260$$
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$$720$$
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$$1440$$
Explanation
Number which has a multiple of all the numbers from $$1$$ to $$10$$ will be multiple of their LCM.
$$LCM (1,2,3,4,5,6,7,8,9,10)= $$
$$1=1$$
$$2=1\times 2$$
$$3=1\times 3$$
$$4=1\times 2\times 2$$
$$5=1\times 5$$
$$6=1\times 2\times 3$$
$$7=1\times 7$$
$$8=1\times 2\times 2\times 2$$
$$9=1\times 3\times 3$$
$$10=1\times 2\times 5$$
$$\therefore \ LCM=1\times 2\times 2\times 2\times 3\times 3\times 5\times 7=2520$$
Amongst the given options, only $$5040$$ is a multiple of $$2520$$.
Hence, $$5040$$ is a multiple of all the numbers from $$1$$ to $$10$$.
Represent 18 as product of prime factors
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$$18=6\times3$$
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$$18=9\times2$$
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$$18=3\times3\times2$$
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$$18=18\times1$$
Identify the terms in the following expression:
$$1+x+{ x }^{ 2 }$$
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$$1,x,{ x }^{ 2 }$$
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$$1,-x,{ x }^{ 2 }$$
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$$1,x,{ -x }^{ 2 }$$
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$$-1,x,{ x }^{ 2 }$$
Represent 60 as product of prime factors
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$$60=5\times6\times2$$
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$$60=5\times3\times2\times2$$
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$$60=3\times4\times5$$
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None of these
Represent 100 as product of prime factors
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$$100=4\times5\times5$$
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$$100=2\times2\times5\times5$$
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$$100=10\times10$$
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None of these
Which one of the following is a common factor of $$15$$ and $$12$$.
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$$2$$
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$$4$$
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$$5$$
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$$3$$
Write all the factors of 25 in blue circle, all the factors of 35 in green circle and all the common factors in yellow circle. Which is highest common factor?
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5
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7
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2
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1
Write all the factors of 24 and 36 and find out the common factors. Which is the highest common factor of these two numbers?
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6
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4
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12
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24
Write all the factors of 16 in circle I and all the factors of 20 in circle II. Write all the common factors in common part of both the circles. Which option shows it correctly?
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None of these
Explanation
Factors of $$ 16 $$ are $$ 1, 2,4 , 8 , 16$$
Factors of $$ 20 $$ are $$ 1, 2, 4, 5, 10, 20 $$
$$\therefore $$ common factors are $$ 1, 2, 4 $$.
Write all the factors of 40 in blue circle and all the factors of 60 in green circle.
1) What are the factors written in common part of both the circles?
2) Which is biggest common factor of 40 and 60?
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1) 2, 4, 5, 10, 20, 40, 60 and 2) 60
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1) 2, 4, 5, 10, 20 and 2) 20
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1) 2, 4, 5, 8, 10, 15, 20 and 2) 20
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1) 2, 3, 4, 5, 10, 20, 30, 40 and 2) 40
Write all the factors of 5, 8 andFind out all the common factors of these numbers. Which is highest common factor?
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5
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8
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10
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1
Using multiplication chart, find all the factors of $$36$$.
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1,2,3,5,7,9,12,15,18,36
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1,2,3,4,6,9,12,18,36
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1,4,7,12,18,36
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1,6,9,18,36
Explanation
Factors of 36 are 1,2,3,4,6,9,12,18,36
If Meena is having 28 bangles and she wants to make groups of bangles such that no any bangle is left, then how many bangles can she put in each group? Write all the possibilities.
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1, 2, 4, 7, 14, 28
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1, 3, 7, 10, 14, 28
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1, 5, 12, 16, 28
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1, 4, 8, 14, 28
Write first 10 multiples of 12 andFind out all the common multiples. Which is smallest common multiple of 12 and 16?
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36
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96
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80
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48
From the multiplication chart, find all the factors of 20
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1, 2, 3, 4, 6, 8, 10, 20
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1, 2, 4, 5, 10, 20
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1, 4, 10, 20
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1, 2, 8, 20
Write all the factors of 54 and 32 and write Highest common factor of 54 and 32
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4
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8
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16
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2
Using factor tree, identify all common factors for 15 and 12.
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1 and 3 only
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1 only
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3 only
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5 and 3 only
Write all the factors of 5, 15 andList out all the common factors and state highest common factor of 5, 15 and 30.
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5
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1
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10
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30
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